<template>
    <div>
        <!-- 面包屑导航区域 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图区域 -->
        <el-card>
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" 
                    v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" 
                        icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
                </el-col>
            </el-row>

            <!-- 用户列表区域 -->
            <el-table :data="userlist" border stripe>
                <el-table-column type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态" prop="mg_state">
                    <template slot-scope="scope">
                        <!-- {{scope.row}} -->
                        <el-switch v-model="scope.row.mg_state" 
                        @change="userStateChanged(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <!-- 修改 -->
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <!-- 删除 -->
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <!-- 分配角色 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>

            <!-- 分页区域 -->
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[1, 2, 5, 10]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed">
            <!-- 内容主体区域 -->
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 底部区域 -->
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="adduser">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 修改用户对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名">
                     <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                 <el-form-item label="邮箱" prop="email">
                     <el-input v-model="editForm.email" ></el-input>
                </el-form-item>
                 <el-form-item label="手机" prop="mobile">
                     <el-input v-model="editForm.mobile" ></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
export default {
    data(){
        //验证邮箱的规则
        var checkEmail=(rule,value,cb)=>{
            //验证邮箱的正则表达式
            const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
            if(regEmail.test(value)){
                //合法的邮箱
                return cb()
            }
            cb(new Error('请输入合法的邮箱'))
        }
        
        //验证手机号的规则
        var checkMobile=(rule,value,cb)=>{
            //验证手机号的正则表达式
            const regMobile=/^(0|86|17951)?(13[0-9]|15[012356789]|17[678|18[0-9]14[57])[0-9]{8}$/
            if(regMobile.test(value)){
                return cb()
            }

            cb(new Error('请输入合法的手机号'))
        }

        return{
            //获取用户列表的参数对象
            queryInfo:{
                query:'',
                //当前页数
                pagenum:1,
                //当前每页显示多少数据
                pagesize:2
            },
            userlist:[],
            total:0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:''
            },
            //添加表单的验证规则
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {
                        min:3,
                        max:10,
                        message:'用户名长度在3-10个字符之间',
                        trigger:'blur'
                    }
                ],
                password:[
                    {required:true,message:'请输入用密码',trigger:'blur'},
                    {
                        min:6,
                        max:15,
                        message:'密码长度在6-15个字符之间',
                        trigger:'blur'
                    }
                ],
                email:[
                    {required:true,message:'请输入用邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入用手机',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ]
            },

            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //查询到的用户信息对象
            editForm:{},
            //修改表单的验证规则对象
            editFormRules:{
                email:[
                    {required:true,message:'请输入用邮箱',trigger:'blur'},
                    {validator:checkEmail,trigger:'blur'}
                ],
                mobile:[
                    {required:true,message:'请输入用手机',trigger:'blur'},
                    {validator:checkMobile,trigger:'blur'}
                ]
            }
        }
    },
    created() {
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const { data: res } = await this.$http.get('users',{
                params: this.queryInfo 
            })
            // const { data: res } = await this.$http.get('http://127.0.0.1:8886/users',{
            //     params: this.queryInfo 
            // })
            if(res.meta.status !==200) {
                return this.$message.error('获取用户列表失败！')
            }
            this.userlist=res.data.users
            this.total=res.data.totalpage
            console.log(res);
        },
        //监听pagesize改变的事件
        handleSizeChange(newSize){
            console.log(newSize);
            this.queryInfo.pagesize=newSize
            this.getUserList()
        },
        //监听页码值改变的事件
        handleCurrentChange(newPage){
            console.log(newPage);
            this.queryInfo.pagenum=newPage
            this.getUserList()
        },
        //监听 switch 开关状态的改变
        async userStateChanged(userinfo){
            console.log(userinfo);
            const {data: res}=await this.$http.put(
                `users/${userinfo.id}/state/${userinfo.mg_state}`
            )
            if(res.meta.status !==200){
                userinfo.mg_state=!userinfo.mg_state
                return this.$message.success('更新用户状态失败')
            }
            this.$message.success('更新用户状态成功')
        },
        //监听添加用户对话框的关闭事件
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        //点击按钮，添加用户
        adduser(){
            this.$refs.addFormRef.validate(async valid=>{
                if(!valid) return
                //可以发起添加用户的网络请求
                const {data:res}=await this.$http.post('users',this.addForm)
                if(res.meta.status !==201) {
                    this.$message.error('添加用户失败')
                }
                this.$message.success('添加用户成功')
                //隐藏添加用户的对话框
                this.addDialogVisible =false
                //重新获取用户列表数据
                this.getUserList()
            })
        },
        //展示编辑按钮的对话框
        async showEditDialog(id){
            const {data: res} = await this.$http.get('users/' + id)
            if(res.meta.status !==200){
                return this.$message.error('查询用户信息失败')
            }

            this.editForm=res.data
            this.editDialogVisible=true
        },

        //监听修改用户对话框的关闭事件
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },

        //修改用户信息并提交
        editUserInfo(){
            this.$refs.editFormRef.validate(async valid=>{
                if(!valid) return
                //发起修改用户信息的数据请求
                const {data: res}=await this.$http.put('users/'+this.editForm.id,{
                    email:this.editForm.email,
                    mobile:this.editForm.mobile
                })

                if(res.meta.status !==200){
                    return this.$message.error('更新用户信息失败')
                }

                //关闭对话框
                this.editDialogVisible=false
                //刷新数据列表
                this.getUserList()
                //提示修改成功
                this.$message.success('更新用户信息成功')
            })
        },

        //根据id删除对应的用户信息
        async removeUserById(id){
            const confirmResult=await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                confirmButtonText: '确定',
                cancelButtonText: '取消',
                type: 'warning'
            }).catch(err=>err)

            //如果用户确认删除，返回字符串confirm
            //如果用户取消删除，则返回字符串 cancel
            // console.log(confirmResult);
            if(confirmResult !=='confirm'){
                return this.$message.info('已取消删除')
            }
            // console.log('确认删除');

             const {data: res}=await this.$http.delete('users/'+id)
             if(res.meta.status !==200){
                 return this.$message.error('删除用户失败')
             }
             this.$message.success('删除用户成功')
             this.getUserList()
        }
    }
}
</script>

<style  scoped>

</style>
